Diff Report
Run #5392041970f3f: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #539201f8938f4: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for PDO::prepare

PDO::prepareRun #5392041970f3fRun #539201f8938f4DiffDiff%
Number of Function Calls170 170 0 0.0%
Incl. Wall Time (microsec)2,167 2,214 47 2.2%
Incl. Wall Time (microsec) per call 13 13 0 2.2%
Excl. Wall Time (microsec)1,081 1,108 27 2.5%
Incl. CPU (microsecs)2,324 2,348 24 1.0%
Incl. CPU (microsecs) per call 14 14 0 1.0%
Excl. CPU (microsec)1,091 1,112 21 1.9%
Incl. MemUse (bytes)105,812 105,808 -4 -0.0%
Incl. MemUse (bytes) per call 622 622 -0 -0.0%
Excl. MemUse (bytes)99,956 99,952 -4 -0.0%
Incl. PeakMemUse (bytes)33,040 32,956 -84 -0.3%
Incl. PeakMemUse (bytes) per call 194 194 -0 -0.3%
Excl. PeakMemUse (bytes)31,544 31,460 -84 -0.3%

Parent/Child Regression/Improvement report for PDO::prepare [View Callgraph Diff]


Function NameCalls DiffCalls
Diff%		Incl. Wall
Diff
(microsec)		IWall
Diff%		Incl. CPU Diff
(microsec)		ICpu
Diff%		Incl.
MemUse
Diff
(bytes)		IMemUse
Diff%		Incl.
PeakMemUse
Diff
(bytes)		IPeakMemUse
Diff%
Current Function
PDO::prepare0 N/A% 47 3.2% 24 0.9% -4 -0.0% -84 -0.1%
Exclusive Metrics Diff for Current Function27 57.4% 21 87.5% -4 -100.0% -84 -100.0%
Parent function
Drupal\Core\Database\Connection::prepareQuery0 N/A% 47 100.0% 24 100.0% -4 -100.0% -84 -100.0%
Child function
Drupal\Core\Database\Statement::__construct0 N/A% 20 42.6% 3 12.5% 0 0.0% 0 0.0%